spapr: Abort if XICS interrupt controller cannot be initialized

Failing to set any of the ICS property should really never happen:
- object_property_add_child() always succeed unless the child object
  already has a parent, which isn't the case here obviously since the
  ICS has just been created with object_new()
- the ICS has an "nr-irqs" property than can be set as long as the ICS
  isn't realized

In both cases, an error indicates there is a bug in QEMU. Propagating the
error, ie. exiting QEMU since spapr_irq_init() is called with &error_fatal
doesn't make much sense. Abort instead. This is consistent with what is
done with XIVE : both qdev_create() and qdev_prop_set_uint32() abort QEMU
on error.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157403285265.409804.8683093665795248192.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

1 files changed, 2 insertions, 11 deletions

diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index fbdda14..d4a54af 100644
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -313,20 +313,11 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
         Object *obj;
 
         obj = object_new(TYPE_ICS_SPAPR);
-        object_property_add_child(OBJECT(spapr), "ics", obj, &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
 
+        object_property_add_child(OBJECT(spapr), "ics", obj, &error_abort);
         object_property_set_link(obj, OBJECT(spapr), ICS_PROP_XICS,
                                  &error_abort);
-        object_property_set_int(obj, smc->nr_xirqs, "nr-irqs", &local_err);
-        if (local_err) {
-            error_propagate(errp, local_err);
-            return;
-        }
-
+        object_property_set_int(obj, smc->nr_xirqs, "nr-irqs", &error_abort);
         object_property_set_bool(obj, true, "realized", &local_err);
         if (local_err) {
             error_propagate(errp, local_err);